[1.0.0-beta.59] - 2026-01-07

⚡ Inline Dynamic Imports for Statically Imported Modules

• When a module is already statically imported, dynamic imports to that same module are now inlined instead of creating a separate chunk
• REPL: before and after

Before:

// entry.js
import { foo } from './foo.js'
console.log(foo)

import('./foo.js').then(mod => console.log(mod.foo))

Previously, import('./foo.js') would create a separate async chunk.

After:

var foo_exports = /* @__PURE__ */ __exportAll({ foo: () => foo });
const foo = "foo";
console.log(foo);
Promise.resolve().then(() => foo_exports).then((mod) => console.log(mod.foo));

The dynamic import is inlined since foo.js is already statically imported.

🚀 Features

• plugin_timings: add 3s threshold and doc link to warning message (feat(plugin_timings): add 3s threshold and doc link to warning message #7741) by @shulaoda
• improve treeshaking logic to handle empty parameter list in dynamic import .then() callbacks (feat: improve treeshaking logic to handle empty parameter list in dynamic import .then() callbacks #7781) by @copilot
• dev/lazy: don't include already executed modules (feat(dev/lazy): don't include already executed modules #7745) by @hyf0
• dev/lazy: support dynamic import(..) (feat(dev/lazy): support dynamic import(..) #7726) by @hyf0
• inline dynamic imports that imports statically imported modules (feat: inline dynamic imports that imports statically imported modules #7742) by @IWANABETHATGUY
• option: add experimental option to control chunk optimization (feat(option): add experimental option to control chunk optimization #7738) by @IWANABETHATGUY

🐛 Bug Fixes

• inline dynamic entry to user defined entry with esm wrap kind (fix: inline dynamic entry to user defined entry with esm wrap kind #7783) by @IWANABETHATGUY
• use canonical namespace reference for property access (fix: use canonical namespace reference for property access #7777) by @IWANABETHATGUY
• dynamic entry merged into common chunk with cjs and esm wrap kind (fix: dynamic entry merged into common chunk with cjs and esm wrap kind #7771) by @IWANABETHATGUY
• tla: should not await non-tla-related modules (fix(tla): should not await non-tla-related modules #7768) by @hyf0
• dynamic entry captured by common chunk with CJS format (fix: dynamic entry captured by common chunk with CJS format #7757) by @IWANABETHATGUY
• module_loader: mark emitted chunks as user-defined entry when already loaded (fix(module_loader): mark emitted chunks as user-defined entry when already loaded #7765) by @shulaoda
• normalize preserveModulesRoot path (fix: normalize preserveModulesRoot path #7737) by @IWANABETHATGUY
• linker: resolve race condition in side effects computation for export-star (fix(linker): resolve race condition in side effects computation for export-star #7728) by @camc314

🚜 Refactor

• plugin_timings: filter out plugins with duration < 1s from timing warnings (refactor(plugin_timings): filter out plugins with duration < 1s from timing warnings #7785) by @shulaoda
• module_loader: remove unnecessary collect before extend (refactor(module_loader): remove unnecessary collect before extend #7769) by @shulaoda
• rename _id suffixes to _idx for oxc_index types (refactor: rename _id suffixes to _idx for oxc_index types #7767) by @IWANABETHATGUY
• remove duplicate preserve_entry_signatures from AddEntryModuleMsg (refactor: remove duplicate preserve_entry_signatures from AddEntryModuleMsg #7762) by @shulaoda
• module_loader: pass user_defined_entries by reference (refactor(module_loader): pass user_defined_entries by reference #7756) by @shulaoda
• dev/lazy: get proxy entry's ResolvedId correctly (refactor(dev/lazy): get proxy entry's ResolvedId correctly #7746) by @hyf0
• simplify try_rewrite_import_expression control flow (refactor: simplify try_rewrite_import_expression control flow #7753) by @IWANABETHATGUY
• module_loader: remove unnecessary dynamic import handling for runtime module (refactor(module_loader): remove unnecessary dynamic import handling for runtime module #7754) by @shulaoda
• inline __toDynamicImportESM (refactor: inline __toDynamicImportESM  #7747) by @IWANABETHATGUY
• use From impl for ModuleLoaderOutput conversion (refactor: use From impl for ModuleLoaderOutput conversion #7732) by @shulaoda
• remove duplicate fields from ModuleLoader (refactor: remove duplicate fields from ModuleLoader #7731) by @shulaoda
• tweak resolve_user_defined_entries (refactor: tweak resolve_user_defined_entries #7727) by @shulaoda

📚 Documentation

• add rolldown-string reference to native MagicString compatibility section (docs: add rolldown-string reference to native MagicString compatibility section #7778) by @copilot
• improve comments for export star side effects handling (docs: improve comments for export star side effects handling #7730) by @IWANABETHATGUY

🧪 Testing

• use assertion instead of console.log for some testcase (test: use assertion instead of console.log for some testcase #7744) by @IWANABETHATGUY

⚙️ Miscellaneous Tasks

• tweak some output.dynamicImportInCjs related rollup test results (chore: tweak some output.dynamicImportInCjs related rollup test results #7776) by @sapphi-red
• mark esbuild/dce/dce_of_symbol_ctor_call as passed (chore: mark esbuild/dce/dce_of_symbol_ctor_call as passed #7775) by @sapphi-red
• deps: update oxc apps (chore(deps): update oxc apps #7772) by @renovate[bot]
• vite-tests: allow running on PRs with test: vite-tests label (ci(vite-tests): allow running on PRs with test: vite-tests label #7770) by @shulaoda
• deps: update oxc apps (chore(deps): update oxc apps #7760) by @renovate[bot]
• deps: update rollup submodule for tests to v4.55.1 (chore(deps): update rollup submodule for tests to v4.55.1 #7763) by @sapphi-red
• deps: update test262 submodule for tests (chore(deps): update test262 submodule for tests #7764) by @sapphi-red
• deps: update oxc to v0.107.0 (chore(deps): update oxc to v0.107.0 #7758) by @camc314
• deps: update taiki-e/install-action action to v2.65.13 (chore(deps): update taiki-e/install-action action to v2.65.13 #7751) by @renovate[bot]
• deps: update rust crates (chore(deps): update rust crates #7750) by @renovate[bot]
• deps: update npm packages (chore(deps): update npm packages #7749) by @renovate[bot]
• deps: update github-actions (chore(deps): update github-actions #7748) by @renovate[bot]
• deps: update dependency oxlint-tsgolint to v0.10.1 (chore(deps): update dependency oxlint-tsgolint to v0.10.1 #7729) by @renovate[bot]
• deps: update crate-ci/typos action to v1.41.0 (chore(deps): update crate-ci/typos action to v1.41.0 #7725) by @renovate[bot]